To smell fragrant; to give off a pleasant scent.
庭の花が春らしく匂っている。
The flowers in the garden smell like spring.
お茶が釜から良い匂いを漂わせていた。
The tea gave off a pleasant aroma from the kettle.
彼女の髪がうっすら匂うので気になった。
Her hair had a faint fragrance, which I noticed.
To stink; to give off a bad smell.
ゴミ置き場から嫌な臭いが匂ってきた。
An unpleasant smell was coming from the garbage area.
古い下水道の近くはいつも臭う。
It always smells near the old sewer.
このチーズは少し匂うが、味はいい。
This cheese smells a bit, but it tastes good.
To seem to glow or to appear faintly bright; to give a subtle impression (used figuratively or for light/color).
夕焼けが空を赤く匂わせた。
The sunset made the sky glow faintly red.
春の気配が匂う道を散歩した。
I walked down a path that hinted at the arrival of spring.
画面全体に温かみが匂う絵だ。
It's a painting that gives the whole picture a warm glow.
To give a hint or suggestion of something; to have the smack or trace of something (often used as 'gives the smell of ~').
この取引には怪しい匂いがする。
This deal smells fishy.
彼の言い訳からは嘘の匂いがする。
His excuse gives the impression that he's lying.
勝算の匂いがして、チームは元気づいた。
They sensed a chance of victory, and the team cheered up.